This article from DPREVIEW helps to break down the complex nature of electronic shutters and their interaction with sensors. For those who care this reference material can be very educational and explain some of the issues that affect your images both still and video.
Whether you’re syncing a flash, wondering why banding is appearing in your image or getting strange images from your camera’s silent shutter mode, the way your shutter works has a role to play. Here’s what happens when you press the shutter button. Read more